1. Determine system parameters
The weight to be moved and the force required;
② Nominal working pressure and range;
③ The time required to travel this distance;
④ oil medium
2. Installation method
Choose the appropriate method for the specific application
3. Cylinder diameter and working pressure
Determine the cylinder bore and the system pressure required to provide the necessary force
4. Piston rod
Determine the minimum piston rod diameter required to withstand the longitudinal bending force, select the appropriate piston rod end and rod end thread
5. Piston
The type of seal is suitable for the application
6. Buffer
Choose buffering requirements as appropriate
7. Oil port
It's a suitable oil outlet
Are they capable of achieving the required speed?
② Is the standard position acceptable?
8. Piston rod seal
Select seals to suit the selected oil medium
9. Accessories
Do you need rod-end accessories?
10. Special features
Installation, materials, environment, and oil according to their own needs to choose the right cylinder.
Here we mainly use the inner diameter and use pressure of the hydraulic cylinder as a reference basis.
The selection of the inner diameter of the general cylinder is calculated according to the requirements of the load, and then the standard size of the closest cylinder diameter is taken.
The inner diameter of these cylinders is the standard inner diameter size, and the load is related to the wall thickness of the cylinder block and the pressure of the system. Usually, a reasonable safety factor is selected when calculating the maximum allowable value of yield and tensile strength. If it is satisfied, then it is OK to accept the cylinder value.
Combined with the system pressure of the mechanical equipment, the use pressure of the cylinder is determined first. For mechanical equipment for finishing, the system pressure selection is lower, usually below 5MPA, if roughing, the system pressure selection is larger.
